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Finding the Fourth Proportional to 504,394.38, 696,068.91 and 278,047.98

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Solution

The fourth proportional to 504,394.38, 696,068.91 and 278,047.98 is: 383,708.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,394.38 : 696,068.91 = 278,047.98 : x
  2. Step 2: Convert to fraction form
    504,394.38/696,068.91 = 278,047.98/x
  3. Step 3: Cross multiply
    504,394.38x = 696,068.91 × 278,047.98
  4. Step 4: Simplify right side
    504,394.38x = 193,540,554,366.30
  5. Step 5: Solve for x
    x = 193,540,554,366.30/504,394.38
  6. Step 6: Final answer
    x = 383,708.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.